...Surely Everything we do conscious and sub-conscious is a product of the brain..therefore everything is ultimately "physical".


The reverse -- that the brain and all the activity is a by-product of consciousness -- is equally tenable. It is not certain at all that consciousness is a product of the brain. It does seem true that the brain acts as a filter and amplifier, but there is a big difference between the source of thought and the mechanisms it gets into being relayed.

Imagine getting confused and believing that conversations were coming out of the telephone, and concluding that it wasn't comprehensibvle because the wiring was so complex -- but nevertheless it was obviosuly the source of all communications because it is obviosu, you hold it up to your ear and it starts talking to you. I have been accused of being meretricious usinfg this analogy, but the point underlying it is important -- the correct source must be included in considering the problem, or the whole solution goes haywire.

A